Alert archive / Alabama / Special Weather Statements in 2021

Special Weather Statement, NWS Mobile, AL

October 2, 2021Monroe County, Alabama

NWS Mobile, AL issued this special weather statement at Oct 2, 2021, 3:09 PM CDT for Monroe County, Alabama. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Oct 2, 2021, 3:09 PM CDT (20:09 UTC)
Expired
Oct 2, 2021, 4:00 PM CDT
In force
51 min
Issued by
NWS Mobile, AL
Hail
0.00 in
Wind
40

County Monroe County, AL

The radar

The Mobile radar (KMOB), 112 km from the middle of the area, began a volume at 20:11 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 8.2 hours before the alert went out and 200 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Birmingham, AL at 12:00Z on 2021-10-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 46 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 2021-10-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
46 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
1020 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
42 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

677 
WWUS84 KMOB 022009
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
309 PM CDT Sat Oct 2 2021
 
ALZ053-055-022100-
Clarke AL-Monroe AL-
309 PM CDT Sat Oct 2 2021

...A strong thunderstorm will impact portions of western Monroe and
east central Clarke Counties through 400 PM CDT...

At 309 PM CDT, National Weather Service doppler radar indicated a
strong thunderstorm 10 miles south of Whatley, or 14 miles east of
Jackson, moving northeast at 20 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects.

Locations impacted include...
Whatley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3134 8754 3149 8781 3178 8769 3162 8734
TIME...MOT...LOC 2009Z 207DEG 17KT 3151 8765 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

$$

MM

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 2, 2:44 PM CDTSpecial Weather StatementMOBWashington61 min

Nearby

Special Weather Statements in Alabama, 2021Every special weather statement in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.